Transfer-printing apparatus



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TRANSFER PRINTING APBANATU Filed Aun-31, 1925 2 Sheets-Shoot 1 J7? (rfa/z im@ N @m1/f wm.

R. WEIDE TRANSFER PRINTING APPARATUS July 12, 1927.

-z sheets-sheet g 'Filed Aux. 3i. 1925 Patented .my 12,1921'.v

UNITED STATES PATENT OFFICE.

RUDOLF WEIDE, 0F BERLIN, GERMANY, vASSIG'NOIR, TO THE FIRM HERMANN HUBWITZ ANI) CO., 0F BERLIN, GERMANY.

TRANSFER-PRINTING APPARATUS.

Application med August 31, i925, Serial No. 53,695, and in France September 8, 1924.

Ihis invention relates to a known transfer printing device such for example a`s the device known as the so-called opalog'raph` system. In the case of this transfer apparatus the plate containing the printing set is carried by a bed. The printing set is inked by means of cylinders, then the sheet to be printed upon is placed in osition, and finally the printing is edected y means of a printing cylinder.

According to the invention the printing cylinder and the inking cylinder are journalled in a frame constructed as a sliding carriage. in such a way that by means of a simple handle the inking of the printing set can be effected during the travel of the slide in one direction and the printing during the return movement, a sheet of paper having in the meantime been placed in position.

One example of the construction of the invention is illustrated in the accompanying drawing.

Figure 1 is a side elevation.

`Yl4`igurc-2 a plan, and

Figure 3 an end elevation.

Fig. 4 is a fragmentary plan view of the inking and printing cylinders and cooperating parts.

Fig. 5 is a detail section on the line 5-5 of Fig. 4.-.

(ln a base plate 1, which may for example be adapted to be secured by means of clamping screws to a table or the like, rests a bed 2, which constitutes or contains a printing set. This art of the apparatus neednot be described 1n detail. A slide or carriage 3 is supported on rollers 4 on the base plate l to enable it to travelV along the latter. In the'slide frame 3 rests a shaft 5, about which two arms 8 are adapted to oscillate, the said arms being unitedat the top by a crossbar 6, provided with a handle 7. The arms'S carry the printing cylinder 10 and the inking cylinder 11. The cylinders 10 and 11 carry pinions 12 and 13 which are connected wit one 4another by intermediate wheels 14 and 15. In 'the slide frame is also supported an inkin mechanism, of which only the inkdistri uting cylinder 16 is shown.

At the side of the printing cylinder A10 one of the armsS carnes another lroller 18, p

which during the movement of the carriage towards the right of the drawing, runs on to a rail '19. The drawin shows a second rail 2O at the left-hand side of Figure 1. This rail coaets with a roller 22 which is rigidly connected to the shaft of the printing cylinder 10, as is most clearly shown in Figure 4. A coil spring 21 on the shaft 5 tends to keep the parts in the position shown in the drawing.

The apparatus operates in the following manner Figure 1V shows the printing position, in

which the slide is being` moved towards the` right by means of the handle 7. The printing cylinder l() remains in the position shown until the'roller 18 is raised by running up on to the rail 19. The sheet is removed from the bed 2 and the user now pushes the slide towards the left by means of the handle 7. fI'n. doing this the user raises the handle 7 in such a way that the inking cylinder 11 comes to bear upon the printing set of the bed 2. The slide is now in this position moved towards the left, and during this movement the. roller 22 runs up on to the rail 20. This has for its object to prevent the printing cylinder l() during the return movement of the slide to the right from coming into contact `with' the edge of the left-hand side of the bed and thereby becoming damaged and to ensure a 'smooth application of the printing cylinder to the bed. After a sheet has now been placed in position again the slide is returned and the y cylinder 11, which has travelled back into the position shown in Figurel, then takes up ink again.

Owing to the action of the spring the cylinders 10 and -11 are always held in such a way that the printing cylinder 10 is located in 'the working position.

Thus in 'order to cause the inkin 11 to bear upon the printing set t cylinder e worker vmust displace the set of cylinders against the action of the spring 21. The spring, however, prevents the inking cylinder 11 from being moved by accident or carelessness over a paper lai-d upon the printing set 2.

Transfer printing apparatus comprising a rinting set, a frame adapted to'be reciprocated over the printing set, 'rockably suported arms mounted on said frame, a printlng cylinder and an inking cylinder journalled in said. arms, toothed Wheels connecting said cylinders to one another, a, handle secured to the cylinder-carrying arms, said handle serving for reciprocating the frame, and for bringing the printing and inking cylinders alternately intotheir operative positions and a spring constantly tending to keep the printing cylinder in its operative l0 position. l

In testimony whereof I have signed my name to this specification.

RUDOLF WEIDE. 

